During orthotopic liver transplantation (OLT), changes of hemodynamic, electrolytes and acid-base balance are frequently occurred. These changes may influence mortality and prognosis during and after surgery. The purpose of this study was to observe and evaluate the changes of hemodynamics and electrolytes occurring in 14 cases canine OLT. After insertion of endotracheal tube, anesthesia was maintained with 1%enflurane and pancuronium bromide. Swan-Ganz catheter(7.5 Fr.) was inserted into right external jugular vein and 20 gauge angiocatheter was also inserted into left femoral artery. Complete hemodynamic variables and electrolytes were measured 30 minutes after skin incision, anhepatic stage, 5 minutes before reperfusion, 5 and 30 minutes after reperfusion. The results were as follows; On reperfusion of grafted liver, 9 cases(64%) showed postreperfusion syndrome. In 9 cases showing Postreperfusion syndrome, cardiac output, systemic vascular resistance, mean pulmonary arterial pressure were decreased and serum potassium concentration was increased on reperfusion, but there were no significant changes in central venous pressure, pulmonary capillary wedge pressure, heart rate, body temperature and serum ionized calcium concentration when comparing with before reperfusion. Decreased mean arterial pressure during reperfusion in postreperfusion syndrome might be speculated through decrease of myocardial contractility and systemic vascular resistance.
Acid-Base Equilibrium ; Anesthesia ; Animals ; Arterial Pressure ; Body Temperature ; Calcium ; Cardiac Output ; Central Venous Pressure ; Dogs ; Electrolytes ; Femoral Artery ; Heart Rate ; Hemodynamics* ; Jugular Veins ; Liver Transplantation* ; Liver* ; Mortality ; Pancuronium ; Potassium ; Prognosis ; Pulmonary Wedge Pressure ; Reperfusion ; Skin ; Transplants ; Vascular Resistance

BACKGROUND: Maze operation is aimed for the restoration of sinus rhythm. But restoration of atrial mechanical function has not been demonstrated in all patients converted to sinus rhythm. METHOD: From Apr. 1994 to Feb. 1996, maze operations were performed in 32 pts (M:F=13:19, mean age 47.1+/-9.0 years) combined with valvular surgery(n=26), CABG(n=3), and others(n=3). Presence of atrial mechanical function was serially examined before discharge, in 3mo, 6mo and 1 yr using Doppler echocardiography. RESULTS: In 22 patients(pts), sinus rhythm was maintained without antiarrhythmic agents. In 4 patients antiarrhythmic agent was required to maintain sinus rhythm while in another 4 patients showed paroxysmal Af despite of the treatment with antiarrhythmic agents. In 30 pts with sinus rhythm or paroxysmal Af, right atrial function was restored in all pts while left atrial function was restored in only 19/30(63%). Peak A velocity and A/E ratio were 0.38+/-0.12m/s, 0.74, respectively on tricuspid inflow(TI), and 0.46+/-0.14m/s, 0.40, respectively on mitral inflow(MI ). MI peak A velocity and A/E ratio were significantly lower than the 16 control postoperative pts (0.75<0.29, 0.80 : p+/-0.01). In pts with atrial mechanical function, the duration of Af was significantly shorter than patients without atrial function (1.9+/-2.9 yr vs 7.1+/-3.0 yr : p<0.01), but no significant differences in the LA size and volume. CONCLUSION: Maze operation is effective in restoring sinus rhythm. But restoration of sinus rhythm was not always associated with restoration of atrial mechanical function, and the restored atrial function was incomplete. The duration of Af could be a markker for predicting the restoration of atrial function.
Atrial Fibrillation ; Atrial Function ; Atrial Function, Left ; Atrial Function, Right ; Echocardiography, Doppler ; Humans

BACKGROUND: Maze operation is aimed for the restoration of sinus rhythm. But restoration of atrial mechanical function has not been demonstrated in all patients converted to sinus rhythm. METHOD: From Apr. 1994 to Feb. 1996, maze operations were performed in 32 pts (M:F=13:19, mean age 47.1+/-9.0 years) combined with valvular surgery(n=26), CABG(n=3), and others(n=3). Presence of atrial mechanical function was serially examined before discharge, in 3mo, 6mo and 1 yr using Doppler echocardiography. RESULTS: In 22 patients(pts), sinus rhythm was maintained without antiarrhythmic agents. In 4 patients antiarrhythmic agent was required to maintain sinus rhythm while in another 4 patients showed paroxysmal Af despite of the treatment with antiarrhythmic agents. In 30 pts with sinus rhythm or paroxysmal Af, right atrial function was restored in all pts while left atrial function was restored in only 19/30(63%). Peak A velocity and A/E ratio were 0.38+/-0.12m/s, 0.74, respectively on tricuspid inflow(TI), and 0.46+/-0.14m/s, 0.40, respectively on mitral inflow(MI ). MI peak A velocity and A/E ratio were significantly lower than the 16 control postoperative pts (0.75<0.29, 0.80 : p+/-0.01). In pts with atrial mechanical function, the duration of Af was significantly shorter than patients without atrial function (1.9+/-2.9 yr vs 7.1+/-3.0 yr : p<0.01), but no significant differences in the LA size and volume. CONCLUSION: Maze operation is effective in restoring sinus rhythm. But restoration of sinus rhythm was not always associated with restoration of atrial mechanical function, and the restored atrial function was incomplete. The duration of Af could be a markker for predicting the restoration of atrial function.
Atrial Fibrillation ; Atrial Function ; Atrial Function, Left ; Atrial Function, Right ; Echocardiography, Doppler ; Humans

Tumor necrosis factor-alpha (TNF-alpha) inhibitors are increasingly used in treatment of inflammatory disorders because of their immunomodulatory efficacy. Increased risk of infection is an adverse effect of anti-TNF-alpha therapy. The incidence rate and severity of herpes zoster is significantly higher in patients on anti-TNF-alpha therapy than in the general population. The clinical presentation of varicella zoster virus infection is also often atypical in these patients. We experienced a patient who presented with a disseminated varicelliform rash while on etanercept therapy for ankylosing spondylitis.
Exanthema ; Herpes Zoster* ; Herpesvirus 3, Human ; Humans ; Incidence ; Spondylitis, Ankylosing* ; Tumor Necrosis Factor-alpha ; Etanercept

BACKGROUND AND OBJECTIVES: The objective of this study was to determine if urinary levels of 8-iso-prostaglandin F2alpha (8-iso-PGF2alpha) and 8-hydroxydeoxyguanine (8-OHdG) could be used as markers of the oxidative stress in significant coronary artery disease (CAD). SUBJECTS AND METHODS: We conducted a case-control study in 104 subjects assessed by coronary angiography with the following diagnoses: 35 consecutive cases of significant CAD and 69 cases of non-CAD with stable angina. We compared the urinary levels of 8-iso-PGF 2alpha and 8-OHdG, as measured by immunoassay between the 2 groups. RESULTS: History of hypertension was significantly higher and high density lipoprotein-cholesterol level significantly lower in the CAD group compared with those in the non-CAD group. Median levels of 8-iso-PGF2alpha were significantly higher in the CAD group compared with the non-CAD group (9.2 vs. 6.0 ng/mg, p=0.001). There were no significant differences in 8-OHdG values between the 2 groups. The odds ratio of 8-iso-PGF2alpha for CAD in the highest tertile compared with that in the lowest tertile was 7.39 (95% confidence interval; 1.71-31.91). There was no significant difference in median values of 8-iso-PGF2alpha between single- and multi-vessel CAD. CONCLUSION: Urinary 8-iso-PGF 2alpha was independently associated with significant CAD in this case-control study.
Angina, Stable ; Case-Control Studies ; Coronary Angiography ; Coronary Artery Disease ; Coronary Vessels ; Dinoprost ; Guanine ; Humans ; Hypertension ; Immunoassay ; Odds Ratio ; Oxidative Stress

BACKGROUND: Pressure-controlled intermittent coronary sinus occlusion(PICSO) as well as synchronized retrograde perfusion(SRP) have emerged as a new technique that can redirect blood through the coronary sinus to nourish ischemic myocardium beyond a coronary occlusion. Also, coronary sinus occlusion pressure(CSOP) can be measured during application of PICSO. This experimental study was to determine the characteristics of CSOP and the effects of PICSO on the reduction of infarct size in experimentally induced acute myocardial infarction. METHOD: 22 dogs were included in this study, 9 in control group and 13 in PICSO group. Thirty minutes after experimental ligation of proximal left anterior descending artery, PICSO device was applied to PICSO group for 4 hours. Systolic and end-diastolic pressure of CSOP, LVEDP(left ventricular end-diastolic pressure), LVSP and aortic pressure with heart rate were measured every 1 hour. After 4 hours, heart was excised and 1% TTC(triphenyl tetrazolium cholride) solution was perfused distal to left anterior descending(LAD) coronary artery to measure the area of viable myocardium in LAD territory. 'The area at risk(LAD territory/LV surface area)' and 'the area of necrosis(necrosis area/LAD territory)' were calculated with cut surface of LV using planimetry. RESULTS: 1) End-diastolic pressure of CSOP and left ventricular end-diastolic pressure(LVEDP) were closely equalized and significantly correlated each other(p<0.001). 2) Aortic pressure profiles, left ventricular pressure profiles and heart rate during coronary occlusion did not differ significantly from the control group. Aortic and left ventricular systolic and mean pressures declined significantly after 1 hour of coronary occlusion. Also LVEDP increased significantly after 1 hour of coronary occlusion(p<0.01). 3) The area of myocardium at risk was similar in both groups(control 12.0+/-2.1 %, PICSO 11.5+/-1.2%). But the results of the area of necrosis within the area of risk showed that PICSO significantly reduces myocardial infarct size(control 79.1+/-4%, PICSO 25.3+/-5%). CONCLUSION: PICSO can be indicated in acute coronary syndrome to reduce the myocardial necrosis especially in LAD territory. In addition, PICSO can be used to evaluated LVEDP by measuring CSOP,especially in patients with severe aortic valvular stenosis. Further study is needed upon the effectiveness of PICSO on clinical situations and precise metabolic effects of PICSO on myocardium.
Acute Coronary Syndrome ; Animals ; Arterial Pressure ; Arteries ; Constriction, Pathologic ; Coronary Occlusion ; Coronary Sinus* ; Coronary Vessels ; Dogs ; Heart ; Heart Rate ; Humans ; Ligation ; Myocardial Infarction* ; Myocardium ; Necrosis ; Ventricular Pressure

BACKGROUND: Pressure-controlled intermittent coronary sinus occlusion(PICSO) as well as synchronized retrograde perfusion(SRP) have emerged as a new technique that can redirect blood through the coronary sinus to nourish ischemic myocardium beyond a coronary occlusion. Also, coronary sinus occlusion pressure(CSOP) can be measured during application of PICSO. This experimental study was to determine the characteristics of CSOP and the effects of PICSO on the reduction of infarct size in experimentally induced acute myocardial infarction. METHOD: 22 dogs were included in this study, 9 in control group and 13 in PICSO group. Thirty minutes after experimental ligation of proximal left anterior descending artery, PICSO device was applied to PICSO group for 4 hours. Systolic and end-diastolic pressure of CSOP, LVEDP(left ventricular end-diastolic pressure), LVSP and aortic pressure with heart rate were measured every 1 hour. After 4 hours, heart was excised and 1% TTC(triphenyl tetrazolium cholride) solution was perfused distal to left anterior descending(LAD) coronary artery to measure the area of viable myocardium in LAD territory. 'The area at risk(LAD territory/LV surface area)' and 'the area of necrosis(necrosis area/LAD territory)' were calculated with cut surface of LV using planimetry. RESULTS: 1) End-diastolic pressure of CSOP and left ventricular end-diastolic pressure(LVEDP) were closely equalized and significantly correlated each other(p<0.001). 2) Aortic pressure profiles, left ventricular pressure profiles and heart rate during coronary occlusion did not differ significantly from the control group. Aortic and left ventricular systolic and mean pressures declined significantly after 1 hour of coronary occlusion. Also LVEDP increased significantly after 1 hour of coronary occlusion(p<0.01). 3) The area of myocardium at risk was similar in both groups(control 12.0+/-2.1 %, PICSO 11.5+/-1.2%). But the results of the area of necrosis within the area of risk showed that PICSO significantly reduces myocardial infarct size(control 79.1+/-4%, PICSO 25.3+/-5%). CONCLUSION: PICSO can be indicated in acute coronary syndrome to reduce the myocardial necrosis especially in LAD territory. In addition, PICSO can be used to evaluated LVEDP by measuring CSOP,especially in patients with severe aortic valvular stenosis. Further study is needed upon the effectiveness of PICSO on clinical situations and precise metabolic effects of PICSO on myocardium.
Acute Coronary Syndrome ; Animals ; Arterial Pressure ; Arteries ; Constriction, Pathologic ; Coronary Occlusion ; Coronary Sinus* ; Coronary Vessels ; Dogs ; Heart ; Heart Rate ; Humans ; Ligation ; Myocardial Infarction* ; Myocardium ; Necrosis ; Ventricular Pressure

BACKGROUND AND OBJECTIVES: Transradial coronary angiography and intervention are increasing in frequency due to lower major vascular access site complications and the potential for early mobilization. However, the small size of the radial artery (RA) is a major limitation of this technique. A sheathless guiding catheter (GC) has recently been introduced that has a 1-2 French smaller diameter compared with the corresponding introducer sheath. This catheter also has a hydrophilic coating along its entire length. We evaluated the feasibility of using a sheathless GC in patients who have small radial arteries. SUBJECTS AND METHODS: The procedural results were evaluated in patients with small radial arteries (diameter <2.3 mm) who underwent transradial coronary intervention using a sheathless GC. RESULTS: A total of 25 (male: 9) patients with 29 lesions were enrolled. The mean RA diameter was 1.81+/-0.26 mm. 44% of the patients had stable angina and 50.0% had acute coronary syndrome. The procedural success rate was 93.1%. Two patients (6.9%) had chronic total occlusive lesions that could not be crossed with a guide-wire despite good guiding support. An intravascular ultrasound could be used for all of the treated lesions. Multi-vessel intervention was performed in 29.2% of the patients. Two bifurcated lesions were treated with a kissing balloon technique, and one with a modified T-stenting technique. No catheter related complications were reported. CONCLUSION: The use of a sheathless GC is feasible in patients with small radial arteries without catheter related complications.
Acute Coronary Syndrome ; Angina, Stable ; Catheters ; Coronary Angiography ; Early Ambulation ; Humans ; Radial Artery

Purpose: Induced sputum eosinophil count is useful for the evaluation and diagnosis of asthma and eosinophilic bronchitis (EB).The aim of this study was to evaluate the correlation of induced sputum eosinophil count with various allergic indicators, including the peripheral blood eosinophil count, in pediatric asthma and EB. Methods: From May 2014 to July 2018, 126 children visited Kyungpook National University Children’s Hospital, and underwent methacholine bronchial challenge test and sputum induction. Peripheral blood eosinophil counts, serum eosinophil cationic protein (ECP), serum total IgE, immunoCAP for inhalant allergens, and skin prick test were performed in the study subjects. Results: In the asthma group, the eosinophil count of induced sputum correlated with peripheral blood eosinophils (r=0.279, P=0.043).The concordance rates of sputum and peripheral blood eosinophil count in the asthma and EB groups were 64.1% and 25.7%, respectively. The number of eosinophils in the sputum also correlated with serum total IgE, ECP, and specific IgE to Dermatophagoides farinae, Dermatophagoides pteronyssinus, and Aspergillus in the asthma group. Conclusion The number of eosinophils in the induced sputum correlated with peripheral blood in the asthma group. However, a third of subjects were discordant. Therefore, we need to keep in mind the possibility of discordance when predicting the degree of airway eosinophilic inflammation using the peripheral blood eosinophils. In EB, the number of induced sputum eosinophils did not correlate with the number of peripheral blood eosinophils, which may be attributed to the difference in mechanism. Further studies are warranted.

To determine the clinical target volumes considering vascularity and cellularity of tumors, the software was developed for mapping of the analyzed biological clinical target volumes on anatomical images using regional cerebral blood volume (rCBV) maps and apparent diffusion coefficient (ADC) maps. The program provides the functions for integrated registrations using mutual information, affine transform and non-rigid registration. The registration accuracy is evaluated by the calculation of the overlapped ratio of segmented bone regions and average distance difference of contours between reference and registered images. The performance of the developed software was tested using multimodal images of a patient who has the residual tumor of high grade gliomas. Registration accuracy of about 74% and average 2.3 mm distance difference were calculated by the evaluation method of bone segmentation and contour extraction. The registration accuracy can be improved as higher as 4% by the manual adjustment functions. Advanced MR images are analyzed using color maps for rCBV maps and quantitative calculation based on region of interest (ROI) for ADC maps. Then, multi-parameters on the same voxels are plotted on plane and constitute the multi-functional parametric maps of which x and y axis representing rCBV and ADC values. According to the distributions of functional parameters, tumor regions showing the higher vascularity and cellularity are categorized according to the criteria corresponding malignant gliomas. Determined volumes reflecting pathological and physiological characteristics of tumors are marked on anatomical images. By applying the multi-functional images, errors arising from using one type of image would be reduced and local regions representing higher probability as tumor cells would be determined for radiation treatment plan. Biological tumor characteristics can be expressed using image registration and multi-functional parametric maps in the developed software. The software can be considered to delineate clinical target volumes using advanced MR images with anatomical images.
Axis, Cervical Vertebra ; Blood Volume ; Diffusion ; Glioma ; Humans ; Neoplasm, Residual